package demo2;

import java.util.Scanner;

/**
 * @Author liangzai
 * @Description:
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int m = scanner.nextInt();
        for (int i = 0; i < n; i++) {
            int a = scanner.nextInt();
        }

    }
}
